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pm -em, or if this is who i think it is, call me and i will take a look at it for you.
We can head out to the range and run it through it's paces while having an extra pair of eyes on it and spot for you. Myself, i practice COM and your groups are good enough for stopping a threat.
I really appreciate the offer and the help RARGUNS. I am gonna take you up on that offer if DPMS isn't willing to help. It will be after the new year however. And jim, I am who you think. You can look at it as well. Multiple opinions doesn't hurt.
Is this a factory complete DPMS rifle? From the grouping and erratic nature it appears the barrel may dancing around. FWIW I have pulled barrels off of DPMS rifles and the barrel nut was finger tight!
Check the simple things before you get too crazy. Holding the rifle very firmly(a helper is a nice thing) grab the FSB and try to rotate/twist it. If you detect any movement check the bbl nut. It should be torqued to 40 ft lbs and if needed tighten additionally to line up for the gas tube. Do not exceed 80 ft lbs.
I would re-install the barrel, checking fit of barrel to receiver and the square of the mating surface on the front of the receiver to barrel.
I would also pull the FH and check condition of the muzzle/crown. If it is the least but questionable I would re-crown it.
If you want I am about a 25 minute drive and for me to check it out and correct the issues I mentioned it would cost you less than shipping it to DPMS.
The rifle is a DPMS complete upper on a Rock River complete lower. Here is a pic of the rifle with iron sights:
http://i184.photobucket.com/albums/x...15group001.jpg
How does one check the barrel nut? I know nothing about taking apart AR15's beyond what is required to clean them. The muzzle crown has been checked by a gunsmith at Rocky Montain Shooters supply. It was in good condition. I'll let you all know what DPMS has to say and whether they will ship it back on their dime. I know Springfield would pay to ship their firearms back under warranty.
i'll call you later. we can toss it on the bench and recheck torque etc.Quote:
Originally Posted by jmg8550
DPMS replied to my email today. They instructed me to send the upper in. They also think it may be the barrel. I'll keep you all posted when I get results from them. I'll probably send it in mid January.
Why wait? It's their money.
I'm curious as to what it is.
I have to ship it at my expense there. They will probably pay to ship it back. I still don't know if they will cover it under warranty as I cannot fid my reciept. Hopefully they will take care of it.
DPMS called yesterday and told me they are hoping to test my upper this coming week. It is very cold up there and the range is outdoors. He said 35 below, I can understand a delay. Should have it back soon though. Great customer service so far.
I'm betting on the front sight or the barrel nut being loose.
We goofed around with it a while back and the front sight base was loose and would wiggle from left to right. That does not explain the groups it puts on paper. If you look at the target JMG8550 posted it has decent grouping from right to left but not up and down.
Curious to see what the problem is